D1LC compact Air Heater - Espar

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19 Self Diagnostics The heater is equipped with self diagnostic capability. To retrieve information on the heaters last 5 faults, a retrieval device is required (part # CA1 05 020). Connect the fault code retrieval device as shown Equipment Face and Controls Symbols that are seen on the display face are as follows: AF F1-F5 Actual fault. Up to five stored faults can be accessed. The AF and F1 are the same number. This sign is displayed when the heater is in operation. DIAG The word (Diagnostic) will come on when the diagnostic number is requested. 000 Three digit diagnostic fault code number. On/Off Retrieval Device • Switch the fault code retrieval device on and wait 10 seconds. • Press the "D" button. • Wait 3-5 seconds for the current fault code to appear (AF). • To review the previous faults use the arrow buttons (F1= Most Recent, F5= Oldest). • To erase the faults that are in memory press both "L" keys at the same time. • Consult the fault code chart for code number descriptions.
20 Note: If there are no heater faults, the heater will go through a normal start cycle and regulate based on thermostat setting. Fault Code Fault Description Causes / Repair 000 Normal Operation 001 Warning - overvoltage Check vehicle charging system. 002 Warning - undervoltage Check batteries and connections. 004 Warning - short in blower signal Check for short between pin 1 to blower relay. If no short exists replace control unit. 005 Warning - short circuit in anti-theft Check for short between pin 2 and alarm relay. alarm output 009 TRS - shut down Check for change of signal from (+) to (-) at pin 10 or a (+) signal at pin 12. 010 Overvoltage Check voltage between terminals 9 and 11. This must be less than 15.9 volts (15.2 volts with glow plug on). Check vehicle charging system. 011 Undervoltage shut down Check voltage between control unit pins 9 and 11. This must be greater than 10.5 volts (9.5 volts with glow plug on). Check batteries and connections. 012 Overheat Check for possible causes of overheat. Check overheat switch resistance values. (see component value chart). 013 Overheat at flame sensor Flame sensor senses temperature above 340°C (resistance value above 2270 Ω ). Check flame sensor resistance values and overheat switch resistance values (see component value chart ). 015 Too many overheats Control unit limits heater to 3 consecutive overheats (fault code12,13). Remove cause of over heat. Reset control unit using control unit tester or fault code retrieval device to unlock control unit. 020 Open circuit - glow plug Check glow plug for break in coils. Check resistance across glow plug leads (1-2 Ω ). Check for continuity between pins 6 and 9. If afore mentioned checks okay, replace control unit. 021 Short circuit - glow plug Check glow plug for short across coils. Check pin 6 to glow plug for short. If glow plug short detected, replace glow plug. If afore mentioned checks okay replace control unit 025 Diagnostics ouput short Check for short between pin 4 and diagnostics and output connection. 033 Burner motor speed deviation Motor speed varies from specification by more than 10% for longer than 30 seconds. If too slow, check for restriction, and check for short in motor circuit or control unit. If none found, replace blower. If too fast, check for damage to magnetic sensor control on control unit. Replace blower motor if damaged. Replace control unit otherwise.
Page 1 and 2: D1LC compact Air Heater Installatio
Page 3 and 4: 2 Heater Warnings Warning To Instal
Page 5 and 6: 4 Specifications Heat Output (±10%
Page 7 and 8: 6 Heater Components 1 Hot Air Blowe
Page 9 and 10: 8 Ducting Components 1. Protective
Page 11 and 12: 10 Fuel Metering Pump • Choose a
Page 13 and 14: 12 Exhaust and Combustion Air Intak
Page 15 and 16: Operational Flow Chart 14
Page 17 and 18: 16 Wiring Diagram D1LCcompact Model
Page 19: 18 Maintenance, Troubleshooting and
Page 23 and 24: 22 Fuel Quantity Test The fuel quan
Page 25 and 26: 24 Heater Casing Disassembly • Re
Page 27: D1LCcompact Service Parts Diagram 2
Page 30 and 31: 29 Parts List D1LC compact Ref. No.
Page 32: 1st. Printing - October 1996 Printe

D1LC compact Air Heater - Espar

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